The things I don't know

His favourite colour Or if he has a brother I know he has a sister Not enough to be my mister How he likes his eggs Never seen his bare legs I've seen his arms Doesn't fall for my charms His favourite meme His preferred team I know he likes football But he won't answer my call His favourite drink His favourite dish I'm pretty sure I know his favourite fish I can but only wish His taste in music I know the genre But not his top song Maybe that's where I'm going wrong